This makes matches, seeing tough sides rush racer after start (5-1,7)

I believe the answer is:

three-d printer

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'this makes matches seeing tough sides' is the definition.
I don't know anything about this answer so I can't tell whether this works.

'rush racer after start' is the wordplay.
I cannot quite understand how this works, but
'rush' could be 'reed' (I've seen this before) and 'reed' is found in the answer.
This explanation may well be incorrect...

Can you help me to learn more?

I've seen this clue in the Sydney Morning Herald.

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